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<?php |
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/** |
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* Term relationships sync module. |
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* |
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* @package automattic/jetpack-sync |
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*/ |
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namespace Automattic\Jetpack\Sync\Modules; |
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use Automattic\Jetpack\Sync\Listener; |
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use Automattic\Jetpack\Sync\Settings; |
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/** |
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* Class to handle sync for term relationships. |
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*/ |
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class Term_Relationships extends Module { |
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/** |
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* Max terms to return in one single query |
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* |
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* @access public |
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* |
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* @const int |
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*/ |
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const QUERY_LIMIT = 1000; |
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/** |
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* Max value for a signed INT in MySQL - https://dev.mysql.com/doc/refman/8.0/en/integer-types.html |
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* |
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* @access public |
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* |
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* @const int |
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*/ |
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const MAX_INT = 2147483647; |
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/** |
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* Sync module name. |
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* |
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* @access public |
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* |
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* @return string |
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*/ |
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public function name() { |
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return 'term_relationships'; |
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} |
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/** |
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* The id field in the database. |
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* |
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* @access public |
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* |
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* @return string |
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*/ |
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public function id_field() { |
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return 'object_id'; |
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} |
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/** |
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* The table in the database. |
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* |
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* @access public |
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* |
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* @return string |
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*/ |
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public function table_name() { |
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return 'term_relationships'; |
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} |
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/** |
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* Initialize term relationships action listeners for full sync. |
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* |
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* @access public |
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* |
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* @param callable $callable Action handler callable. |
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*/ |
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public function init_full_sync_listeners( $callable ) { |
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add_action( 'jetpack_full_sync_term_relationships', $callable, 10, 2 ); |
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} |
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/** |
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* Initialize the module in the sender. |
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* |
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* @access public |
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*/ |
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public function init_before_send() { |
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// Full sync. |
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add_filter( 'jetpack_sync_before_send_jetpack_full_sync_term_relationships', array( $this, 'expand_term_relationships' ) ); |
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} |
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/** |
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* Enqueue the term relationships actions for full sync. |
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* |
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* @access public |
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* |
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* @param array $config Full sync configuration for this sync module. |
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* @param int $max_items_to_enqueue Maximum number of items to enqueue. |
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* @param object $last_object_enqueued Last object enqueued. |
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* |
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* @return array Number of actions enqueued, and next module state. |
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* @todo This method has similarities with Automattic\Jetpack\Sync\Modules\Module::enqueue_all_ids_as_action. Refactor to keep DRY. |
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* @see Automattic\Jetpack\Sync\Modules\Module::enqueue_all_ids_as_action |
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*/ |
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public function enqueue_full_sync_actions( $config, $max_items_to_enqueue, $last_object_enqueued ) { |
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global $wpdb; |
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$term_relationships_full_sync_item_size = Settings::get_setting( 'term_relationships_full_sync_item_size' ); |
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$limit = min( $max_items_to_enqueue * $term_relationships_full_sync_item_size, self::QUERY_LIMIT ); |
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$items_enqueued_count = 0; |
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$last_object_enqueued = $last_object_enqueued ? $last_object_enqueued : array( |
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'object_id' => self::MAX_INT, |
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'term_taxonomy_id' => self::MAX_INT, |
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); |
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while ( $limit > 0 ) { |
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/* |
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* SELECT object_id, term_taxonomy_id |
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* FROM $wpdb->term_relationships |
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* WHERE ( object_id = 11 AND term_taxonomy_id < 14 ) OR ( object_id < 11 ) |
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* ORDER BY object_id DESC, term_taxonomy_id DESC LIMIT 1000 |
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*/ |
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$objects = $wpdb->get_results( $wpdb->prepare( "SELECT object_id, term_taxonomy_id FROM $wpdb->term_relationships WHERE ( object_id = %d AND term_taxonomy_id < %d ) OR ( object_id < %d ) ORDER BY object_id DESC, term_taxonomy_id DESC LIMIT %d", $last_object_enqueued['object_id'], $last_object_enqueued['term_taxonomy_id'], $last_object_enqueued['object_id'], $limit ), ARRAY_A ); |
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// Request term relationships in groups of N for efficiency. |
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$objects_count = count( $objects ); |
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if ( ! count( $objects ) ) { |
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return array( $items_enqueued_count, true ); |
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} |
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$items = array_chunk( $objects, $term_relationships_full_sync_item_size ); |
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$last_object_enqueued = $this->bulk_enqueue_full_sync_term_relationships( $items, $last_object_enqueued ); |
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$items_enqueued_count += count( $items ); |
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$limit = min( $limit - $objects_count, self::QUERY_LIMIT ); |
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} |
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// We need to do this extra check in case $max_items_to_enqueue * $term_relationships_full_sync_item_size == relationships objects left. |
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$count = $wpdb->get_var( $wpdb->prepare( "SELECT COUNT(*) FROM $wpdb->term_relationships WHERE ( object_id = %d AND term_taxonomy_id < %d ) OR ( object_id < %d ) ORDER BY object_id DESC, term_taxonomy_id DESC LIMIT %d", $last_object_enqueued['object_id'], $last_object_enqueued['term_taxonomy_id'], $last_object_enqueued['object_id'], 1 ) ); |
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if ( intval( $count ) === 0 ) { |
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return array( $items_enqueued_count, true ); |
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} |
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return array( $items_enqueued_count, $last_object_enqueued ); |
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} |
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/** |
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* Return the initial last sent object. |
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* |
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* @return string|array initial status. |
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*/ |
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public function get_initial_last_sent() { |
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return array( |
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'object_id' => self::MAX_INT, |
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'term_taxonomy_id' => self::MAX_INT, |
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); |
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} |
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/** |
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* Given the Module Full Sync Configuration and Status return the next chunk of items to send. |
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* |
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* @param array $config This module Full Sync configuration. |
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* @param array $status This module Full Sync status. |
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* @param int $chunk_size Chunk size. |
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* |
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* @return array|object|null |
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*/ |
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public function get_next_chunk( $config, $status, $chunk_size ) { |
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global $wpdb; |
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return $wpdb->get_results( |
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$wpdb->prepare( |
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"SELECT object_id, term_taxonomy_id |
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FROM $wpdb->term_relationships |
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WHERE ( object_id = %d AND term_taxonomy_id < %d ) OR ( object_id < %d ) |
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ORDER BY object_id DESC, term_taxonomy_id |
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DESC LIMIT %d", |
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$status['last_sent']['object_id'], |
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$status['last_sent']['term_taxonomy_id'], |
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$status['last_sent']['object_id'], |
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$chunk_size |
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), |
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ARRAY_A |
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); |
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} |
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/** |
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* |
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* Enqueue all $items within `jetpack_full_sync_term_relationships` actions. |
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* |
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* @param array $items Groups of objects to sync. |
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* @param array $previous_interval_end Last item enqueued. |
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* |
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* @return array Last enqueued object. |
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*/ |
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public function bulk_enqueue_full_sync_term_relationships( $items, $previous_interval_end ) { |
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$listener = Listener::get_instance(); |
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$items_with_previous_interval_end = $this->get_chunks_with_preceding_end( $items, $previous_interval_end ); |
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$listener->bulk_enqueue_full_sync_actions( 'jetpack_full_sync_term_relationships', $items_with_previous_interval_end ); |
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$last_item = end( $items ); |
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return end( $last_item ); |
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} |
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/** |
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* Retrieve an estimated number of actions that will be enqueued. |
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* |
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* @access public |
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* |
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* @param array $config Full sync configuration for this sync module. |
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* @return int Number of items yet to be enqueued. |
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*/ |
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public function estimate_full_sync_actions( $config ) { |
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global $wpdb; |
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$query = "SELECT COUNT(*) FROM $wpdb->term_relationships"; |
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// phpcs:disable WordPress.DB.PreparedSQL.NotPrepared |
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$count = $wpdb->get_var( $query ); |
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return (int) ceil( $count / Settings::get_setting( 'term_relationships_full_sync_item_size' ) ); |
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} |
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/** |
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* Retrieve the actions that will be sent for this module during a full sync. |
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* |
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* @access public |
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* |
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* @return array Full sync actions of this module. |
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*/ |
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public function get_full_sync_actions() { |
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return array( 'jetpack_full_sync_term_relationships' ); |
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} |
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/** |
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* Expand the term relationships within a hook before they are serialized and sent to the server. |
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* |
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* @access public |
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* |
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* @param array $args The hook parameters. |
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* @return array $args The expanded hook parameters. |
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*/ |
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public function expand_term_relationships( $args ) { |
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list( $term_relationships, $previous_end ) = $args; |
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return array( |
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'term_relationships' => $term_relationships, |
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'previous_end' => $previous_end, |
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); |
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} |
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} |
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If a method or function can return multiple different values and unless you are sure that you only can receive a single value in this context, we recommend to add an additional type check:
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